Published: 2 July 2024 | Last Updated: 21:00 UTC, 7 July 2024
Hurricane Beryl made landfall near the island of Carriacou in St. Vincent and the Grenadines on Monday 1st July at approximately 15:00 UTC.
The map to the left shows the population changes for the most recent date and for the date of landfall.
The charts below, show the population changes for specific population centers.
From 2nd July almost no data was available for Carriacou, Petit Martinique, Union Island and Mayreau islands, indicating widespread electrical and connectivity outages.
Grenada island is still seeing decreased population in the north east of the island while the rest of the island has returned to pre-crisis levels.
The displacement analysis is done using Facebook Popluation Estimates data from Meta’s Data for Good initiative. Analysis was conducted by IOM. The building damage asssment data is from Microsoft, using imagery from Planet.
Limitations of the displacement analysis include;
- Levels and variance in Facebook usage by the affected populations.
- Network infrastrctural issues can also impact the findings.
Hurricane Beryl Emergency Coordinator - Jan-Willem WEGDAM jwegdam@iom.int
Regional Migration Data Coordinator - Raul Andres SOTO rsoto@iom.int
For details on this dashboard, contact Brian Mc Donald bmcdonald@iom.int
Currently, there is a persistent decrease in population in the north-eastern areas of Grenada island, while most other areas are seing population figures close to their pre-disatster baseline.
The population levels for St. George’s has returned to the pre-crisis baseline as of 4th July.
Grenville, has seen population returns continously since 3rd July and is currently approximately 10% lower that its pre-crisis baseline. Areas north of Grenville to Sauteurs continue to see a large population decrease.
While widespread electrical and connectivity outages continue on Carricaou, some areas did have some connectivity, indicating a population decrease of approximately 80% for the past 3 days.
No data was available since 1st July for Petit Martinique due to widespread electrical and connectivity outages on the island.
St. Vincent and the Grenadines
No data was available since 1st July for Union Island, due to widespread electrical and connectivity outages.
No data was available since 1st July for Mayreau, due to widespread electrical and connectivity outages.
Of the 2,825 building footprints on Carricou Island, Grenada, imagery of an estimated 888 are currently covered by clouds, preventing analysis. Of the remaining 1,937 footprints, 57% show some degree of visible damage:
913 buildings (47.13%) with damage fraction between 0% and 20%
70 buildings (3.61%) with damage fraction between 20% and 40%
75 buildings (3.87%) with damage fraction between 40% and 60%
102 buildings (5.27%) with damage fraction between 60% and 80%
77 buildings (40.11%) with damage fraction between 80% and 100%
This analysis is provided courtesy of Microsoft AI for Good Lab, using imagery from Planet SkySat from 2nd July 2024.
damage_pct_0m – the fraction of the building footprint’s area that is classified as damaged by the model
damage_pct_10m – total damaged area within a 10m buffer of the building footprint (including the footprint itself) / building footprint’s area (this can be >1.0 but we clip to 1.0)
damage_pct_20m – same as above but with a 20m buffer
damage – 1 if damage_pct_0m > 0 else 0
unknown_pct– covered by clouds
This analysis uses optical satellite imagery and likely underestimates building damage as not all building damage can be detected from this visual perspective. Cloud cover prevented analysis of 31% of the buildings.